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產(chǎn)品型號173SA
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更新時間:2024-11-20 12:16:15瀏覽次數(shù):1482次
聯(lián)系我時,請告知來自 化工儀器網(wǎng)室內(nèi)空氣甲醛檢測管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
氯化氫HCl氣體檢測管173SA HYDROGEN CHLORIDE 20-1200ppm
Tube 73SA
1. PERFORMANCE
1) Measuring range :40-1,200 ppm 20-600 ppm
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Purple→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:5% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting witl alkali, PH indicator is discoloured.
HCI+NaOH→NaCI+H2O
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
??????
GAS To pump
DETECTOR TUBE
(white)
DEHUMIDIFIER TUBE
600
500
400
300
200
100
100
20
100ml
ppm
173SA HYDROGEN CHLORIDE
Substance Interference ppm Coexistence
Sulphur dioxide Yellow - Pink double - layer stains are
FIG.1 Yellow stain is produced. pHroyddruocgeedn a cnhdlo trhidise p cinokn csetanitnra intiodnic.ates
Chlorine 〃
Hydrogen sulphide 500 The accuracy of readings is not affected.
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value
0
600
400
200
Sulphur dioxide〔ppm〕?
FIG.1 Influence of Sulphur dioxide
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